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anonymous

  • 4 years ago

solve by elimination 2x+3y=3 and 4x+6y=6

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  1. anonymous
    • 4 years ago
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    2x+3y=3 (1) 4x+6y=6 (2) Because (2)=2*(1) there are infinite solutions as they are the same line.

  2. anonymous
    • 4 years ago
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    through elimination I got 12x+18y=18 and 12x+18y=18.......they are the same so I thought this meant there is no solution, Im having a hard time figuring this out so is that right/

  3. anonymous
    • 4 years ago
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    If they are exactly the same, then they have infinite solutions. If only the gradient is the same then there are no solutions. (Remember must be in the form y=mx+c to check the gradient m) If they are neither of the above two, and are both straight lines, then there is one solution.

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